Which versions of pycalculater are malicious?

The following PyPI versions of pycalculater are flagged malicious: 0.1. Treat any of these as compromised.

How do I remediate pycalculater if I installed it?

pycalculater is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

I already installed pycalculater — how do I know if it already compromised me?

If pycalculater was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

Is pycalculater part of a known attack campaign?

Yes — pycalculater is associated with the RLMA-2024-11125, 2024-11-discconnect, RLUA-2026-00622 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find pycalculater across my projects, lockfiles, and CI pipelines?

Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for pycalculater (version 0.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging pycalculater across your stack and pipelines.

Malicious package

pycalculaterPyPI

Malicious code in pycalculater (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2024-11668

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

pip uninstall pycalculater

What this malware does

During installation, a remote, obfuscated executable is downloaded and started. The executable at least disables automated updates, malware protection and other security mechanisms.

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2024-11-discconnect

Reasons (based on the campaign):

typosquatting
The package overrides the install command in setup.py to execute malicious code during installation.
Downloads and executes a remote executable.
modify-system-without-consent

Malicious versions

1 flagged

0.1

Indicators of compromise (SHA-256)

b134606ba4131fec6dffcaea5d179a43e02f1c316722dba51adc6b2ba5d8ce03

51106af900fd7468f6f0f4843241acc0d77ec25fa8202e9acf8e4bd9768f9fd9

84e239de4d2d6d9652a78ead4c1ebb6b3f4952aeb54dc51dc30765eaaf806368

480420580352f5878edb88bd8735a44447220fcc725d4cdb1e99ee74b02193b4

35ef85dfa84fa413142d7514ae0f19781b5ebade139a0d11b03b8faf9594dbc6

Detection & response playbook

Credential / info stealer

Find it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for pycalculater (version 0.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging pycalculater across your stack and pipelines.
If you installed it — respond
pycalculater is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If pycalculater was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.
How O3 protects you
O3 blocks pycalculater before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. pycalculater on PyPI has been identified as a malicious package (version 0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-111252024-11-discconnectRLUA-2026-00622

References

Credits

Kamil Mańkowski (kam193)
ReversingLabs · finder

Detect & block this

O3 blocks pycalculater-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring